How connected models Position and SecurityQuote?

[pikhovkin]

class Account(Base):
    ...
    
    @hybrid_property
    def holdings_value(self):
        res = Counter()
        for position in self.positions:
            if position.is_open:
                latest_quote = object_session(position).query(SecurityQuote).order_by('date desc').limit(1).first()

I am not an expert in Alchemy. How connected models Position and SecurityQuote? In which field linked these models?

[llazzaro]

There is a missing link in the model here. I think that holdings_value was a draft.
I will fix this soon